Thanks for the reply, but my version of Aria and the samples came bundled with Acid Pro, and the one Serial Number is supposed to authorize everything.
(Everything from here on out is less for Derrek and more for anyone with the same problem that might stumble across this thread later...)
I found this in the help center that says to contact Sony for any support questions for Aria for Acid Pro:
https://makemusic.zendesk.com/hc/en-us/ ... A-for-AcidBut, making things more difficult, Sony recently sold Acid, among other things, to Magix, and no longer supports Acid. So, hopefully, Magix will be able to solve my problem.